Diversity

Because I’m currently taking the California Certified Naturalist class, I’m spending more time than usual looking at and photographing various organisms. I’m astonished at the diversity of organisms that I saw this week within a 45 minute drive of our house. I managed to see organisms from four kingdoms — plants, animals, fungi, and Chromista (which includes brown algae). Going down one taxonomic level, I saw organisms from over a dozen different phyla (for animals) or divisions (for the other three kingdoms).

This represents an astonishing evolutionary diversity: green algae, red algae, vascular plants; sac fungi and allies, mushrooms and allies; brown algae; sea anemones and allies, molluscs, sea stars and allies, arthropods, ringed worms, flatworms, chordates. And I saw eight of these taxonomic groupings within a five minute walk from my desk.

I have a tendency to focus on flowering plants and vertebrates, while ignoring other organisms. Sometimes it’s good to remind myself how much biological diversity is in my own back yard.

Ochre Sea Star (sea stars and allies), Sea Lettuce (green algae), Surf Grass (vascular plant), and unidentified red algae at Pescadero State Beach on Friday — that’s four phyla/divisions in one photograph.

Leave a Reply

Your email address will not be published. Required fields are marked *

Solve : *
18 − 8 =